Precision Power BA1000.4 1000W 4-Channel Black Ice Series Class A/B Car Amplifier Series 4-Channel Class A/B Car Amplifier RMS Power Rating: 4 ohms: 80 watts x 4 chan. / 2 ohms: 125 watts x 4 chan. / Bridged, 4 ohms: 250 watts x 2 chan. Max power output: 1000 watts 200mV-6V High Level or Low Level RCA Input Direct Short, Thermal, & Overload Circuits Protect Amplifier